git-svn: Translate invalid characters in refname
In git some characters are invalid as documented
in git-check-ref-format. In subversion these characters might
be valid, so a translation is required.
This patch does this translation by url escaping characters, that
are not allowed.
Credit goes to Eric Wong, martin f. krafft and Jan Hudec
Signed-off-by: Robert Ewald <robewald@gmx.net>
Acked-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/git-svn.perl b/git-svn.perl
index 6c692a7..ee7ef69 100755
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -938,8 +938,8 @@
foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
next unless m#^refs/remotes/$ref->{regex}$#;
my $p = $1;
- my $pathname = $path->full_path($p);
- my $refname = $ref->full_path($p);
+ my $pathname = desanitize_refname($path->full_path($p));
+ my $refname = desanitize_refname($ref->full_path($p));
if (my $existing = $fetch->{$pathname}) {
if ($existing ne $refname) {
die "Refspec conflict:\n",
@@ -1239,7 +1239,40 @@
$self;
}
-sub refname { "refs/remotes/$_[0]->{ref_id}" }
+sub refname {
+ my ($refname) = "refs/remotes/$_[0]->{ref_id}" ;
+
+ # It cannot end with a slash /, we'll throw up on this because
+ # SVN can't have directories with a slash in their name, either:
+ if ($refname =~ m{/$}) {
+ die "ref: '$refname' ends with a trailing slash, this is ",
+ "not permitted by git nor Subversion\n";
+ }
+
+ # It cannot have ASCII control character space, tilde ~, caret ^,
+ # colon :, question-mark ?, asterisk *, space, or open bracket [
+ # anywhere.
+ #
+ # Additionally, % must be escaped because it is used for escaping
+ # and we want our escaped refname to be reversible
+ $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
+
+ # no slash-separated component can begin with a dot .
+ # /.* becomes /%2E*
+ $refname =~ s{/\.}{/%2E}g;
+
+ # It cannot have two consecutive dots .. anywhere
+ # .. becomes %2E%2E
+ $refname =~ s{\.\.}{%2E%2E}g;
+
+ return $refname;
+}
+
+sub desanitize_refname {
+ my ($refname) = @_;
+ $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
+ return $refname;
+}
sub svm_uuid {
my ($self) = @_;
